If white foam appears when you urinate, there are many possibilities to consider, it may be a physiological manifestation or a pathological problem. White foam in urine can be seen in some physiological phenomena, such as urine concentration caused by various reasons, commonly caused by staying up late and fatigue, sitting and holding urine, drinking too little water, or by the influence of dietary factors, urine concentration or inorganic salts contained in urine is elevated, there will be an increase in the surface tension of urine, which can appear foam, this situation is a physiological manifestation, generally do routine urine examination There should be no positive results, and no special treatment is needed, so pay attention to drink more water and rest regularly. White foam in urine can be a pathological manifestation, such as nephritis or nephrotic syndrome, can appear a large amount of protein urine, which will make the urine appear a large amount of foam, this situation will be found in the routine urine test urine protein content is significantly elevated, you can further do kidney function tests, or kidney tissue puncture biopsy clear, need to go to the hospital nephrology department, under the guidance of the doctor Under the guidance of a doctor, standardized treatment should be carried out. White foam in the urine is very common, but we should be aware of the possibility of some diseases, we should go to the examination in a timely manner to make sure that the early treatment intervention, and also pay attention to good habits.